CN111721252A - Blade angle calibrating device of adjustable stator blade system - Google Patents
Blade angle calibrating device of adjustable stator blade system Download PDFInfo
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- CN111721252A CN111721252A CN202010587470.8A CN202010587470A CN111721252A CN 111721252 A CN111721252 A CN 111721252A CN 202010587470 A CN202010587470 A CN 202010587470A CN 111721252 A CN111721252 A CN 111721252A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
- G01B21/042—Calibration or calibration artifacts
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Abstract
The invention discloses a blade angle calibration device of an adjustable stator blade system and a use method thereof, belonging to the field of angle measurement and calibration of adjustable stator blades of an aero-engine, and comprising a digital display angle ruler, a first calibration system, a second calibration system and a third calibration system; the digital display angle ruler comprises a fixed bottom plate, a rotating plate, a locking device and an angle display screen; the three calibration systems are respectively in one-to-one correspondence with stator blade outer bushing nuts, adjacent stator blade outer bushing nuts and linkage ring pin shafts on the casing, and the corresponding angles of the blades are obtained by determining the angles between the connecting lines of the support arms and the adjacent stator blades through three points. The fixed sleeves of the three calibration systems, the first pointer and the second pointer can be changed in a modularized way, the length of the fixed sleeves can be adjusted, and the fixed sleeves can be adjusted according to adjustable stator blade systems with different sizes and shapes; the angle measurement value is displayed through an angle display screen. The method is simple to operate, is suitable for adjustable stator blade systems of different forms, and can finish the measurement and calibration of the angle of the stator blade.
Description
Technical Field
The invention belongs to the field of angle measurement and calibration of adjustable stator blades of an aero-engine, and particularly relates to a blade angle calibration device of an adjustable stator blade system; in particular to an angle measuring and calibrating device for stator blades of a high-pressure compressor.
Background
The core component of the aircraft with the aircraft engine mainly comprises three parts, namely a compressor, a combustion chamber and a turbine. The compressor is one of important components of the engine, and works on the gas to increase the pressure of the gas so that the gas can work outwards after the subsequent heating process, and works on the flowing gas flow under the condition of low flow resistance loss to improve the pressure of the flowing gas flow, thereby completing the conversion from mechanical energy to gas flow potential energy.
Surging is a great problem which puzzles the research of the high-pressure compressor, the surging affects the working efficiency of the compressor except for changing the thrust, and the surging state for a long time can accelerate the fatigue of internal parts of the compressor and rapidly enlarge existing cracks, and even can cause irreparable damage and even explosion of an engine under severe conditions. Rotating stator blades are a mainstream method of preventing compressor surge. The blade angle of a Variable State Vane System (VSV) is not fixed, and the gas outlet angle of a rotating stator Vane can be adjusted to enable movable vanes behind the stator vanes to work under a satisfactory attack angle, so that surging is avoided, the compressor can still ensure the movable vanes to work under the basically satisfactory attack angle under the condition of deviating from the design working condition, and the efficiency of the compressor at a non-design point is improved. The stable range of the compressor is limited in a narrow area near the designed rotating speed under the condition that the stator blades are fixed, and the compressor can keep a stable working state by adopting an angle-adjustable stator blade system, so that good working characteristics are obtained.
The small difference of the blade angle generated during installation can cause great influence on the overall working characteristics of the compressor, and the angle measurement of the stator blade of the compressor is mainly judged by abundant experience of an assembler at present and is finished by means of sense and experience. The deviation cannot be avoided by manual judgment, continuous adjustment is needed, a large amount of time is consumed, and the precision cannot be guaranteed.
In some cases, an angle calibration instrument is used for auxiliary calibration, and the Chinese patent invention with the publication number of 109356671A provides an adjustable stator blade angle adjusting mechanism. The stator blade angle adjusting device is used for quickly realizing the angle adjustment of the adjustable stator blade; however, the instrument can only detect whether the angle reaches a set value, and can perform qualitative judgment, the specific numerical value of the blade angle cannot be read, and the instrument does not have universality and needs to be redesigned aiming at different forms of adjustable stator blade systems. Therefore, a device capable of measuring and calibrating the angle of the stator blade is needed to be designed, the working efficiency of an assembler is improved, the device is designed in a modular mode, has universality and can be applied to different blade angle measurement scenes.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the blade angle calibrating device of the adjustable stator blade system, which can replace manual measurement to calibrate the angle of the stator blade.
The purpose of the invention is realized by the following technical scheme: a vane angle calibration device of an adjustable stator vane system comprises a digital display angle ruler, a first calibration system, a second calibration system and a third calibration system;
the first calibration system includes a first pointer that is aligned with an outer bushing nut center of an adjacent stator vane; the second calibration system includes a second pointer aligned with a center of rotation of a link ring of a stator blade; the third calibration system comprises a fixed sleeve, and the axis of the fixed sleeve is aligned with the center of an outer bushing nut of the stator blade;
the digital display angle ruler comprises a fixed bottom plate, a rotating plate, a locking device and an angle display screen; the rotating plate is rotatably connected with the fixed bottom plate, and the locking device is used for controlling the relative position between the fixed bottom plate and the rotating plate to be unchanged.
Preferably, the first calibration system further comprises a first connecting sleeve, a locking screw, a first reference pin and a sliding block; the first pointer is connected with the first connecting sleeve through a locking screw, and the first connecting sleeve is connected with the rotating plate in a sliding mode through a first reference pin and a sliding block.
Preferably, one end of the first connecting sleeve, which is far away from the first pointer, is connected with the first reference pin, the sliding block is located between the first reference pin and the rotating plate and slides along the track on the side surface of the rotating plate, and when the first reference pin is locked with the sliding block and is installed on the rotating plate, the first reference pin drives the first calibration system to slide along the rotating plate.
Preferably, the second calibration system further comprises a second connecting sleeve, a locking screw, a second reference pin, a pin bushing, a reference rod and a stop nail; and one end of the second calibration system, which is far away from the second pointer, is provided with a knurled high nut, the second pointer is connected with the second connecting sleeve through a locking screw, and the second calibration system is arranged on the reference rod through the knurled high nut, the second reference pin and the pin shaft sleeve.
Preferably, a cover plate is arranged above one end, far away from the second pointer, of the reference rod and used for pressing the reference rod to enable the reference rod to keep horizontal in the stretching process, a stop nail is arranged at one end, far away from the second pointer, of the reference rod, the reference rod slides along a sliding rail arranged in the length direction of the fixed bottom plate, a groove is formed in one end, far away from the second pointer, of the rotating plate, and when the reference rod is clamped into the groove in the tail end of the rotating plate, zero point calibration of the angle is achieved.
Preferably, the third calibration system comprises a third connecting sleeve, a fixing sleeve, a locking screw, a fixing nut, a middle pin and a fixing sleeve; the upper end of the middle pin is arranged below the rotating plate through a fixing nut, the lower end of the middle pin is locked with the third connecting sleeve, and the lower end of the third connecting sleeve is connected with the fixing sleeve through a locking screw.
Preferably, the third calibration system is installed on the rotating plate through a fixing nut and a middle pin at the upper end, and serves as the vertex of the angle to be measured.
Preferably, the digital display angle ruler is powered by a battery, and the angle display screen is used for displaying the numerical value of the angle value between the reference rod and the rotating plate.
Preferably, the first pointer, the second pointer and the fixing sleeve of the first calibration system, the second calibration system and the third calibration system are detachably arranged through locking screws. Through loosening the locking screw, carry out length adjustment from top to bottom, also can directly dismantle the measurement requirement of changing in order to adapt to different adjustable stator blade systems according to the corresponding modularization interface of adjustable stator blade system design of difference.
A vane angle calibration device of an adjustable stator vane system comprises a digital display angle ruler, a first calibration system, a second calibration system and a third calibration system;
the first calibration system includes a first pointer that is aligned with an outer bushing nut center of an adjacent stator vane; the second calibration system includes a second pointer aligned with a center of rotation of a link ring of a stator blade; the third calibration system comprises a fixed sleeve, and the axis of the fixed sleeve is aligned with the center of an outer bushing nut of the stator blade;
the digital display angle ruler comprises a fixed bottom plate, a rotating plate, a locking device and an angle display screen; the locking device is used for controlling the relative position between the fixed bottom plate and the rotating plate to be unchanged;
the first calibration system further comprises a first connecting sleeve, a locking screw, a first reference pin and a sliding block; the first pointer is connected with a first connecting sleeve through a locking screw, and the first connecting sleeve is connected with the rotating plate in a sliding mode through a first reference pin and a sliding block; one end, far away from the first pointer, of the first connecting sleeve is connected with a first reference pin, the sliding block is located between the first reference pin and the rotating plate and slides and moves along a track on the side face of the rotating plate, and when the first reference pin is locked with the sliding block and installed on the rotating plate, the first reference pin drives the first calibration system to slide along the rotating plate;
the second calibration system also comprises a second connecting sleeve, a locking screw, a second reference pin, a pin shaft sleeve, a reference rod and a stop nail; a knurled high nut is arranged at one end, far away from the second pointer, of the second calibration system, the second pointer is connected with the second connecting sleeve through a locking screw, and the second calibration system is arranged on the reference rod through the knurled high nut, the second reference pin and the pin shaft sleeve; a cover plate is arranged above one end, far away from the second pointer, of the reference rod and used for pressing the reference rod to enable the reference rod to be kept horizontal in the stretching process, a stop nail is arranged at one end, far away from the second pointer, of the reference rod, the reference rod slides along a sliding rail arranged in the length direction of the fixed bottom plate, a groove is formed in one end, far away from the second pointer, of the rotating plate, and when the reference rod is clamped into the groove in the tail end of the rotating plate, zero point calibration of an angle is achieved;
the third calibration system comprises a third connecting sleeve, a fixing sleeve, a locking screw, a fixing nut, a middle pin and a fixing sleeve; the upper end of the middle pin is arranged below the rotating plate through a fixing nut, the lower end of the middle pin is locked with a third connecting sleeve, and the lower end of the third connecting sleeve is connected with the fixing sleeve through a locking screw; the third calibration system is arranged on the rotating plate through a fixing nut at the upper end and a middle pin and is used as the vertex of the angle to be measured;
the digital display angle ruler is powered by a battery, and the angle display screen is used for displaying the numerical value of the angle value between the reference rod and the rotating plate; the first pointer, the second pointer and the fixed sleeve of the first calibration system, the second calibration system and the third calibration system are detachably arranged through locking screws. Through loosening the locking screw, carry out length adjustment from top to bottom, also can directly dismantle the measurement requirement of changing in order to adapt to different adjustable stator blade systems according to the corresponding modularization interface of adjustable stator blade system design of difference.
The stator blade of the measured adjustable stator blade system is installed on the casing through a coaxial outer bushing nut, the stator blade is fixedly connected with the support arm, and the angle is changed simultaneously. The fixed sleeve is aligned with the axle center of the stator blade outer lining nut, the first pointer is aligned with the axle center of the adjacent stator blade outer lining nut, the second pointer is aligned with the axle center of the linkage ring pin shaft, the reference rod is parallel to the support arm, the angle of the connection line of the support arm and the adjacent stator blade is measured, the angle of the stator blade is further measured, and measurement and calibration are completed.
In summary, compared with the prior art, the invention has the following beneficial effects:
(1) the device is fine, the angle calibration precision is high, manual experience calibration can be replaced, and the working efficiency is improved;
(2) the calibration system is adjustable in length, the fixed sleeve and the pointer are in modular design, can be adjusted according to different measurement conditions, and is suitable for most angle calibration scenes;
(3) the invention can realize the quantitative reading of the blade angle, directly display the numerical value of the angle and has simple operation.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic front partial sectional view of a blade angle adjusting apparatus of an adjustable stator blade system according to embodiment 1;
FIG. 2 is a schematic side sectional view at zero scale of a vane angle adjusting apparatus of an adjustable stator vane system according to embodiment 1;
FIG. 3 is a schematic top view of the vane angle adjusting device of the adjustable stator vane system of embodiment 1 at zero scale;
FIG. 4 is a schematic isometric view of the adjustable stator vane system of embodiment 1 at a non-zero scale of the vane angle adjustment mechanism;
FIG. 5 is a schematic bottom view of the adjustable stator vane system of embodiment 1 with a non-zero scale of the vane angle calibration device;
FIG. 6 is a schematic rear sectional view of a blade angle adjusting apparatus of an adjustable stator blade system according to embodiment 1;
FIG. 7 is a schematic structural view of an adjustable stator vane system;
FIG. 8 is a schematic view of a portion of a variable stator vane system;
reference numerals:
1. a digital display angle ruler; 2. fixing the bottom plate; 3. a rotating plate; 4. a cover plate; 5. a reference bar; 6. stopping nails; 7. a second reference pin; 8. a pin bush; 9. a middle pin; 10. a first reference pin; 11. a slider; 12. a first connecting sleeve; 13. a second connecting sleeve; 14. a third connecting sleeve; 15. fixing a sleeve; 16. a first pointer; 17. a second pointer; 18. knurling a high nut; 19. fixing a nut; 20. locking the screw; 21. a locking device; 22. an angle display screen; 23. a slide rail; 24. a case; 25. a stator blade; 26. a link ring; 27. a link ring pin; 28. stator vane outer bushing nuts; 29. adjacent stator vane outer bushing nuts; 30. a support arm; 31. a first calibration system; 32. a second calibration system; 33. and a third calibration system.
Detailed Description
The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, which ranges of values are to be considered as specifically disclosed herein, the invention is described in detail below with reference to specific examples:
example 1
As shown in fig. 1 to 8, the vane angle calibrating device for the adjustable stator vane system is composed of a digital display angle ruler 1, and a first calibrating system 31, a second calibrating system 32 and a third calibrating system 33 which are installed on the digital display angle ruler 1. In the angle calibration working state, the first pointer 16 on the first calibration system 31 is aligned with the axle center of the adjacent stator blade outer bushing nut 29; the second pointer 17 on the second calibration system 32 is aligned with the axle center of the link ring pin shaft 27; the fixture sleeve 15 of the third alignment system 33 is axially aligned with the stator vane outer bushing nut 28.
The digital display angle ruler 1 is provided with a locking device 21 for locking the current pose of the digital display angle ruler 1, the fixed bottom plate 2 and the rotating plate 3 are maintained not to rotate relatively, and the angle display screen 22 displays the numerical value of the included angle between the fixed bottom plate 2 and the rotating plate 3.
In the first calibration system 31, the first pointer 16 is locked on the first connecting sleeve 12 through the locking screw 20, the first connecting sleeve 12 is fixedly connected with the first reference pin 10, and sliding blocks are installed on two sides between the first reference pin 10 and the rotating plate 3, so that the first calibration system can translate along the rotating plate 3.
In the second calibration system 32, the second pointer 17 is locked on the second connecting sleeve 13 through the locking screw 20, the second reference pin 7, the pin bushing 8 and the knurled high nut 18 are installed at the upper end of the second connecting sleeve 13, the knurled high nut 18 is screwed, the positions of the reference rod 5 and the second connecting sleeve 13 are locked, and the stop nail 6 is installed on the reference rod 5 and can move along the sliding rail 23 on the fixed bottom plate 2.
The third calibration system 33, the fixing sleeve 15 is connected with the third connecting sleeve 14 through the locking screw 20, and the third calibration system 33 is installed on the digital display angle ruler 1 through the middle pin 9 and the fixing nut 19.
The blade angle calibrator device of the adjustable stator blade system provided by the invention has the following use and operation processes:
(1) and (3) observing the system form of the tested adjustable stator blade, unscrewing the locking screw 20, replacing the matched fixed sleeve 15, the first pointer 16 and the second pointer 17, confirming whether the locking screw 20 is locked or not, and ensuring correct installation.
(2) The extension length of the reference rod 5 is shortened, the second connecting sleeve 13 is clamped into a groove at one end of the fixed bottom plate 2, and the rotating plate 3 is restored to a zero scale working state to perform zero scale calibration.
(3) The retainer sleeve 15 is aligned with a stator vane outer bushing nut 28 on the case 24. Adjusting the position of the first reference pin 10, moving the first alignment system 31 so that the first pointer 16 is located directly above the axis of the nut 29 of the outer bushing of the adjacent stator vane, adjusting the locking screw 20 so that the first pointer 16 is pushed to the axis of the top surface of the nut 29 of the outer bushing of the adjacent stator vane, and tightening the locking screw 20. The direction of the fixed bottom plate 2 is adjusted to enable the reference rod 5 to point to the direction of the linkage ring pin shaft 27 and be parallel to the support arm 30, and the up-down height of the second pointer 17 is adjusted to be jacked to the top surface axis of the linkage ring pin shaft 27.
(4) And (3) screwing a locking device 21 on the digital display angle ruler 1 to ensure that the angle position is locked, reading an angle measurement value on an angle display screen 22, and calibrating the angle of the blade.
(5) And taking down the angle calibrator, and restoring the positions of the second calibration system 32 and the third calibration system 33 to zero scale to finish the blade angle calibration of the adjustable stator blade system.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A vane angle calibration device of an adjustable stator vane system is characterized by comprising a digital display angle ruler (1), a first calibration system (31), a second calibration system (32) and a third calibration system (33);
the first calibration system (31) comprises a first pointer (16), the first pointer (16) being aligned with an outer bushing nut center of an adjacent stator blade (25); the second calibration system (32) comprises a second pointer (17), the second pointer (17) being aligned with the centre of rotation of the link ring (26) of the stator blade (25); the third calibration system (33) comprises a fixed sleeve (15), and the axis of the fixed sleeve (15) is aligned with the center of an outer bushing nut of the stator blade (25);
the digital display angle ruler (1) comprises a fixed bottom plate (2), a rotating plate (3), a locking device (21) and an angle display screen (22); the rotating plate (3) is rotatably connected with the fixed bottom plate (2), and the locking device (21) is used for controlling the relative position between the fixed bottom plate (2) and the rotating plate (3) to be unchanged.
2. The vane angle calibration device of an adjustable stator vane system according to claim 1, wherein the first calibration system (31) further comprises a first connection sleeve (12), a locking screw (20), a first reference pin (10), a slider (11); the first pointer (16) is connected with the first connecting sleeve (12) through a locking screw (20), and the first connecting sleeve (12) is connected with the rotating plate (3) in a sliding mode through a first reference pin (10) and a sliding block (11).
3. The blade angle calibrating device of the adjustable stator blade system according to claim 2, wherein the end of the first connecting sleeve (12) far away from the first pointer (16) is connected with the first reference pin (10), the sliding block (11) is located between the first reference pin (10) and the rotating plate (3) and slides along the side track of the rotating plate (3), and when the first reference pin (10) is locked with the sliding block (11) and is installed on the rotating plate (3), the first reference pin (10) drives the first calibrating system (31) to slide along the rotating plate (3).
4. The vane angle calibration device of an adjustable stator vane system according to claim 1, characterized in that the second calibration system (32) further comprises a second connection sleeve (13), a locking screw (20), a second reference pin (7), a pin bushing (8), a reference rod (5), a stop nail (6); one end, far away from the second pointer (17), of the second calibration system (32) is provided with a knurled high nut (18), the second pointer (17) is connected with the second connecting sleeve (13) through a locking screw (20), and the second calibration system (32) is installed on the reference rod (5) through the knurled high nut (18), the second reference pin (7) and the pin shaft sleeve (8).
5. The blade angle calibrating device of the adjustable stator blade system according to claim 4, wherein a cover plate (4) is arranged above one end of the reference rod (5) far away from the second pointer (17) and used for pressing the reference rod (5) to enable the reference rod (5) to be kept horizontal in the stretching process, a stop nail (6) is arranged at one end of the reference rod (5) far away from the second pointer (17), the reference rod (5) slides along a sliding rail (23) arranged in the length direction of the fixed bottom plate (2), a groove is formed in one end of the rotating plate (3) far away from the second pointer (17), and when the reference rod (5) is clamped into the groove in the tail end of the rotating plate (3), zero point calibration of an angle is achieved.
6. The vane angle calibration device of an adjustable stator vane system according to claim 1, characterized in that the third calibration system (33) comprises a third connection sleeve (14), a fixing sleeve (15), a locking screw (20), a fixing nut (19), a middle pin (9), a fixing sleeve (15); the upper end of the middle pin (9) is arranged below the rotating plate (3) through a fixing nut (19), the lower end of the middle pin is locked with a third connecting sleeve (14), and the lower end of the third connecting sleeve (14) is connected with a fixed sleeve (15) through a locking screw (20).
7. The vane angle calibration device of an adjustable stator vane system according to claim 6, wherein the third calibration system (33) is mounted on the rotor plate (3) by means of a fixing nut (19) at the upper end and an intermediate pin (9).
8. The blade angle calibration device of an adjustable stator blade system according to claim 1, wherein the digital display angle ruler (1) is powered by a battery, and the angle display screen (22) is used for displaying the value of the angle between the reference rod (5) and the rotating plate (3).
9. The vane angle calibration device of an adjustable stator vane system according to claim 1, wherein the first pointer (16), the second pointer (17) and the fixing sleeve (15) of the first calibration system (31), the second calibration system (32) and the third calibration system (33) are detachably provided by a locking screw (20).
10. A vane angle calibration device of an adjustable stator vane system is characterized by comprising a digital display angle ruler (1), a first calibration system (31), a second calibration system (32) and a third calibration system (33);
the first calibration system (31) comprises a first pointer (16), the first pointer (16) being aligned with an outer bushing nut center of an adjacent stator blade (25); the second calibration system (32) comprises a second pointer (17), the second pointer (17) being aligned with the centre of rotation of the link ring (26) of the stator blade (25); the third calibration system (33) comprises a fixed sleeve (15), and the axis of the fixed sleeve (15) is aligned with the center of an outer bushing nut of the stator blade (25);
the digital display angle ruler (1) comprises a fixed bottom plate (2), a rotating plate (3), a locking device (21) and an angle display screen (22); the rotating plate (3) is rotatably connected with the fixed bottom plate (2), and the locking device (21) is used for controlling the relative position between the fixed bottom plate (2) and the rotating plate (3) to be unchanged;
the first calibration system (31) further comprises a first connecting sleeve (12), a locking screw (20), a first reference pin (10) and a sliding block (11); the first pointer (16) is connected with the first connecting sleeve (12) through a locking screw (20), and the first connecting sleeve (12) is connected with the rotating plate (3) in a sliding mode through a first reference pin (10) and a sliding block (11); one end, far away from the first pointer (16), of the first connecting sleeve (12) is connected with the first reference pin (10), the sliding block (11) is located between the first reference pin (10) and the rotating plate (3) and slides and moves along a track on the side face of the rotating plate (3), and when the first reference pin (10) is locked with the sliding block (11) and installed on the rotating plate (3), the first reference pin (10) drives the first calibration system (31) to slide along the rotating plate (3);
the second calibration system (32) further comprises a second connecting sleeve (13), a locking screw (20), a second reference pin (7), a pin shaft sleeve (8), a reference rod (5) and a stop nail (6); a knurled high nut (18) is arranged at one end, far away from the second pointer (17), of the second calibration system (32), the second pointer (17) is connected with the second connecting sleeve (13) through a locking screw (20), and the second calibration system (32) is installed on the reference rod (5) through the knurled high nut (18), the second reference pin (7) and the pin shaft sleeve (8); a cover plate (4) is arranged above one end, far away from the second pointer (17), of the reference rod (5) and used for pressing the reference rod (5) to enable the reference rod (5) to be kept horizontal in the stretching process, a stop nail (6) is arranged at one end, far away from the second pointer (17), of the reference rod (5), the reference rod (5) slides along a sliding rail (23) formed in the length direction of the fixed bottom plate (2), a groove is formed in one end, far away from the second pointer (17), of the rotating plate (3), and when the reference rod (5) is clamped into the groove in the tail end of the rotating plate (3), zero point calibration of an angle is achieved;
the third calibration system (33) comprises a third connecting sleeve (14), a fixed sleeve (15), a locking screw (20), a fixed nut (19), a middle pin (9) and the fixed sleeve (15); the upper end of the middle pin (9) is arranged below the rotating plate (3) through a fixed nut (19), the lower end of the middle pin is locked with a third connecting sleeve (14), and the lower end of the third connecting sleeve (14) is connected with a fixed sleeve (15) through a locking screw (20); the third calibration system (33) is arranged on the rotating plate (3) through a fixed nut (19) at the upper end and a middle pin (9);
the digital display angle ruler (1) is powered by a battery, and the angle display screen (22) is used for displaying the numerical value of the angle value between the reference rod (5) and the rotating plate (3); the first pointer (16), the second pointer (17) and the fixed sleeve (15) of the first calibration system (31), the second calibration system (32) and the third calibration system (33) are detachably arranged through locking screws (20).
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| CN202010587470.8A CN111721252B (en) | 2020-06-24 | 2020-06-24 | Blade angle calibrating device of adjustable stator blade system |
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| CN202010587470.8A CN111721252B (en) | 2020-06-24 | 2020-06-24 | Blade angle calibrating device of adjustable stator blade system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959306A (en) * | 2021-09-09 | 2022-01-21 | 中国航发南方工业有限公司 | Adjustable stator blade installation angle measuring device and method and axial-flow type air compressor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006030037A1 (en) * | 2004-08-11 | 2006-03-23 | Plasfi, S.A. | Device, method and bag for forming foam cushions for packaging purposes |
| CN103511181A (en) * | 2012-06-27 | 2014-01-15 | 华锐风电科技(集团)股份有限公司 | Blade correction method and system |
| CN204501211U (en) * | 2015-02-11 | 2015-07-29 | 刘文杰 | A kind of ophthalmic medical treatment is cut |
| CN108844459A (en) * | 2018-05-03 | 2018-11-20 | 华中科技大学无锡研究院 | A kind of scaling method and device of leaf digital template detection system |
-
2020
- 2020-06-24 CN CN202010587470.8A patent/CN111721252B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006030037A1 (en) * | 2004-08-11 | 2006-03-23 | Plasfi, S.A. | Device, method and bag for forming foam cushions for packaging purposes |
| CN103511181A (en) * | 2012-06-27 | 2014-01-15 | 华锐风电科技(集团)股份有限公司 | Blade correction method and system |
| CN204501211U (en) * | 2015-02-11 | 2015-07-29 | 刘文杰 | A kind of ophthalmic medical treatment is cut |
| CN108844459A (en) * | 2018-05-03 | 2018-11-20 | 华中科技大学无锡研究院 | A kind of scaling method and device of leaf digital template detection system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959306A (en) * | 2021-09-09 | 2022-01-21 | 中国航发南方工业有限公司 | Adjustable stator blade installation angle measuring device and method and axial-flow type air compressor |
| CN113959306B (en) * | 2021-09-09 | 2024-08-09 | 中国航发南方工业有限公司 | Adjustable stator blade installation angle measuring device and method and axial-flow compressor |
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| CN111721252B (en) | 2021-08-31 |
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